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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10837231 B1

PDFFull Text
Expired
Date of Patent:
Nov. 17, 2020

Filed:

Aug. 24, 2018

Double head drilling device and method for producing a bore

Applicant:

Eurodrill Gmbh, Drolshagen, DE;

Inventors:

Andreas Pikowski, Drolshagen, DE;

Markus Merzhaeuser, Olpe, DE;

Henrik Uelhoff, Drolshagen-Herpel, DE;

Assignee:

EURODRILL GmbH, Drolshagen, DE;

Attorney:

Studebaker & Brackett PC

Primary Examiner:

Catherine Loikith

Int. Cl.
CPC ...
E21B 3/02 (2006.01); E21B 19/00 (2006.01); E21B 7/02 (2006.01); E21B 19/24 (2006.01); E21B 7/00 (2006.01); E21B 7/20 (2006.01);
U.S. Cl.
CPC ...
E21B 3/02 (2013.01); E21B 7/002 (2013.01); E21B 7/02 (2013.01); E21B 7/20 (2013.01);
Abstract

The invention relates to a double head drilling device for a drill rod having an outer pipe and an inner rod running at least in sections inside the outer pipe, with a first drive unit for driving the inner rod in a rotating manner and a second drive unit for driving the outer pipe in a rotating manner. According to the invention provision is made in that for the releasable clamping of the inner rod a first clamping head and a second clamping head are provided and in that the two clamping heads are supported in an axially displaceable manner with respect to each other. Furthermore, the invention also comprises a method for producing a bore with this double head drilling device.

Find Patent Forward Citations

Pikowski, Andreas. (2020). Double head drilling device and method for producing a bore (U.S. Patent No. 10837231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10837231

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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